Gustavo Gutierrez, a Dominican priest and theologian from Peru, is the author of A Theology of Liberation, On Job: God-Talk and the Suffering of the Innocent, We Drink from Our Own Wells, The God of Life, and many other books. He teaches at the University of Notre Dame. Gerhard Ludwig Muller was ordained as a priest in 1971. After teaching dogmatic theology in Munich, he was appointed bishop of Regensberg. In 2012 he was appointed Prefect for the Congregation for the Doctrine of the Faith. He was named a Cardinal in 2014.